diff --git a/modules/system/system.module b/modules/system/system.module
index 3ebc657..08bed29 100644
--- a/modules/system/system.module
+++ b/modules/system/system.module
@@ -2018,6 +2018,7 @@ function system_block_info() {
   $blocks['help'] = array(
     'info' => t('System help'),
     'weight' => '5',
+    'cache' => DRUPAL_NO_CACHE,
   );
   // System-defined menu blocks.
   foreach (menu_list_system_menus() as $menu_name => $title) {
diff --git a/modules/system/system.test b/modules/system/system.test
index 59c632a..6a2c86e 100644
--- a/modules/system/system.test
+++ b/modules/system/system.test
@@ -1362,6 +1362,8 @@ class FrontPageTestCase extends DrupalWebTestCase {
 }
 
 class SystemBlockTestCase extends DrupalWebTestCase {
+  protected $profile = 'testing';
+
   public static function getInfo() {
     return array(
       'name' => 'Block functionality',
@@ -1371,17 +1373,17 @@ class SystemBlockTestCase extends DrupalWebTestCase {
   }
 
   function setUp() {
-    parent::setUp();
+    parent::setUp('block');
 
     // Create and login user
-    $admin_user = $this->drupalCreateUser(array('administer blocks'));
+    $admin_user = $this->drupalCreateUser(array('administer blocks', 'access administration pages'));
     $this->drupalLogin($admin_user);
   }
 
   /**
-   * Test displaying and hiding the powered-by block.
+   * Test displaying and hiding the powered-by and help blocks.
    */
-  function testPoweredByBlock() {
+  function testSystemBlocks() {
     // Set block title and some settings to confirm that the interface is available.
     $this->drupalPost('admin/structure/block/manage/system/powered-by/configure', array('title' => $this->randomName(8)), t('Save block'));
     $this->assertText(t('The block configuration has been saved.'), t('Block configuration set.'));
@@ -1389,6 +1391,7 @@ class SystemBlockTestCase extends DrupalWebTestCase {
     // Set the powered-by block to the footer region.
     $edit = array();
     $edit['blocks[system_powered-by][region]'] = 'footer';
+    $edit['blocks[system_main][region]'] = 'content';
     $this->drupalPost('admin/structure/block', $edit, t('Save blocks'));
     $this->assertText(t('The block settings have been updated.'), t('Block successfully moved to footer region.'));
 
@@ -1409,6 +1412,18 @@ class SystemBlockTestCase extends DrupalWebTestCase {
     $edit['blocks[system_powered-by][region]'] = 'footer';
     $this->drupalPost('admin/structure/block', $edit, t('Save blocks'));
     $this->drupalPost('admin/structure/block/manage/system/powered-by/configure', array('title' => ''), t('Save block'));
+
+    // Set the help block to the help region.
+    $edit = array();
+    $edit['blocks[system_help][region]'] = 'help';
+    $this->drupalPost('admin/structure/block', $edit, t('Save blocks'));
+
+    // Test displaying the help block with block caching enabled.
+    variable_set('block_cache', TRUE);
+    $this->drupalGet('admin/structure/block/add');
+    $this->assertRaw(t('Use this page to create a new custom block.'));
+    $this->drupalGet('admin/index');
+    $this->assertRaw(t('This page shows you all available administration tasks for each module.'));
   }
 }